Table 2.

Compressive behavior of porous Al with different PMMA contents. Data are presented in mean ± standard deviation.

PMMA Content (wt %)	Plateau Stress (MPa)	Relative Density (ρ* /ρs)	Energy Absorption Capability (MJ/m3)
20	29.41 ± 0.42	0.61 ± 0.32	1.61 ± 0.60
25	24.76 ± 0.55	0.56 ± 0.28	3.65 ± 0.57
30	17.17 ± 0.49	0.51 ± 0.41	1.41 ± 0.44